CN209925303U

CN209925303U - Submersible sewage pump for sewage treatment

Info

Publication number: CN209925303U
Application number: CN201920767077.XU
Authority: CN
Inventors: 仲鹏
Original assignee: Qingdao Rui Shun Tai Pump Industry Co Ltd
Current assignee: Qingdao Rui Shun Tai Pump Industry Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-01-10
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a submersible sewage pump for sewage treatment, which comprises a pump body and a driving device, wherein the pump body is of a hollow structure, the driving device penetrates through the pump body, an impeller is sleeved below the driving device and is positioned in the volute, a water pumping seat is arranged below the volute, a water outlet is arranged at the right side of the volute, the pump body comprises a motor shell and a cooling shell, a cooling cavity is arranged between the motor shell and the cooling shell, the driving device comprises a leading-out cable, an upper bearing, a transmission shaft, a lower bearing, a mechanical sealing element, a rotor and a stator, the leading-out cable is fixed above the pump body through a cable fixing sleeve, a temperature sensor is arranged on the side wall of the motor cavity, the motor cavity below is equipped with the seal chamber, the seal chamber is passed to the transmission shaft, the transmission shaft passes through mechanical seal spare and seals, be equipped with in the seal chamber and reveal test probe. The utility model discloses guarantee to stealthily dirty pump operation intensive cooling, the security of stealthily dirty pump use has been guaranteed to the protection motor simultaneously.

Description

Submersible sewage pump for sewage treatment

Technical Field

The utility model belongs to the technical field of water pump equipment technique and specifically relates to a stealthily dirty pump for sewage treatment.

Background

The submersible sewage pump is used as key equipment for environmental protection and sewage treatment, can convey various domestic sewage, industrial wastewater, construction site drainage, liquid feed and the like, and plays an important role in various industries such as municipal engineering, industry, hospitals, buildings, restaurants, water conservancy construction and the like. When the submersible sewage pump discharges sewage, various scum, plastic products and fibrous objects generally exist in the sewage, and the impurities enter the submersible sewage pump to easily cause that the sewage discharge is not smooth and the normal work of the pump is influenced, so that on one hand, the flow, the lift, the efficiency and the like of the submersible sewage pump are influenced, on the other hand, the shaft power of the submersible sewage pump is increased along with the severity of winding and blocking, and the motor is seriously even burnt. In order to avoid that faults caused by the fact that the faults such as leakage, overload, overtemperature and the like of the pump cannot be found in time, the submersible sewage pump needs to be modified, so that the submersible sewage pump can automatically give an alarm when the fault occurs, and automatically stops for standby maintenance; in addition, the submersible sewage pump is likely to be damaged by overheating of the motor after it is exposed to the water surface, and therefore, the motor needs to be sufficiently cooled.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the prior art, the utility model provides a submersible sewage pump for sewage treatment.

The utility model provides a technical scheme that its technical problem adopted is: a submersible sewage pump for sewage treatment comprises a pump body, a driving device, a pump water pumping seat and a water outlet, wherein the pump body is of a hollow structure, the driving device penetrates through the pump body, an impeller is sleeved below the driving device and positioned in a volute, the pump water pumping seat is arranged below the volute, the water outlet is arranged on the right side of the volute, a hanging ring is arranged above the pump body, the pump body comprises a motor shell and a cooling shell, a cooling cavity is formed between the motor shell and the cooling shell, the driving device comprises a leading-out cable, an upper bearing, a transmission shaft, a lower bearing, a mechanical sealing element, a rotor and a stator, the leading-out cable is fixed above the pump body through a cable fixing sleeve, the other end of the leading-out cable extends into the motor cavity, the motor cavity is respectively provided with the upper bearing, the transmission shaft and the lower bearing from top to bottom, and a temperature, the motor cavity below is provided with the sealed chamber that is full of oil, the sealed chamber is passed to the transmission shaft, the transmission shaft passes through mechanical seal spare and seals, be provided with in the sealed chamber and reveal test probe.

Foretell a stealthily dirty pump for sewage treatment, temperature sensor all with controller input electric connection with revealing the test probe, controller output and motor electric connection.

According to the submersible sewage pump for sewage treatment, the cooling cavity is of a communicated structure, and water can flow circularly.

The beneficial effects of the utility model are that, through setting up the cooling chamber, under the condition that does not consume more energies, cool down to the motor, reduced the overheated risk of motor, temperature sensor can report to the police and cut off the power supply when temperature is overheated or sealed intracavity is intake simultaneously with revealing the setting of probe detector, and the security that stealthily dirty pump used has been guaranteed to the protection motor, the utility model discloses simple structure, the practicality is strong.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the present invention.

In the figure, 1, a leading-out cable, 2, a lifting ring, 3, a motor shell, 4, an upper bearing, 5, a temperature sensor, 6, a cooling cavity, 7, a water outlet pipe, 8, a transmission shaft, 9, a lower bearing, 10, a mechanical sealing element, 11, a leakage detection probe, 12, a water outlet, 13, an impeller, 14, a pumping water seat, 15, a volute, 16, a sealing cavity, 17, a rotor, 18, a stator, 19, a motor cavity, 20, a water return pipe, 21, a cooling shell, 22, a pump body and 23, a cable fixing sleeve are arranged.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

A submersible sewage pump for sewage treatment comprises a pump body 22, a driving device, a pump water pumping seat 14 and a water outlet 12, wherein the pump body 22 is of a hollow structure, the driving device penetrates through the pump body 22, an impeller 13 is sleeved below the driving device, the impeller 13 is positioned in a volute 15, the pump water pumping seat 14 is arranged below the volute 15, the water outlet 12 is arranged on the right side of the volute 15, a hanging ring 2 is arranged above the pump body 22, the pump body 22 comprises a motor shell 3 and a cooling shell 21, a cooling cavity 6 is arranged between the motor shell 3 and the cooling shell 21, a water outlet pipe 7 and a water return pipe 20 are arranged in the cooling cavity 6, the driving device comprises a leading-out cable 1, an upper bearing 4, a transmission shaft 8, a lower bearing 9, a mechanical sealing element 10, a rotor 17 and a stator 18, the leading-out cable 1 is fixed above the pump body 22 through a cable fixing sleeve, the other end of the leading-out cable 1 extends into a motor cavity 19, the motor cavity 19 is respectively provided with an upper bearing 4, a transmission shaft 8 and a lower bearing 9 from top to bottom, a temperature sensor 5 is arranged on the side wall of the motor cavity 19, a sealing cavity 16 filled with oil is arranged below the motor cavity 19, the transmission shaft 8 penetrates through the sealing cavity 16, the transmission shaft 8 is sealed through a mechanical sealing element 10, and a leakage detection probe 11 is arranged in the sealing cavity 16.

Further, the temperature sensor 5 and the leakage detection probe 11 are both electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the motor.

Further, the cooling cavity 6 is a communication structure, and can realize the circulating flow of water.

Specifically, the utility model discloses during the use, be provided with outlet pipe 7 and wet return 20 in the stealthily dirty pump cooling chamber 6, outlet pipe 7 links to each other with impeller 13 high-pressure area, wet return 20 links to each other with the low-pressure area, stealthily dirty pump during operation, because the effect of pressure, impeller 13 throws away water has partly to get into in the cooling chamber 6 through outlet pipe 7, reach motor upper portion, flow back impeller 13 low-pressure area from wet return 20 again, form the circulation convection current, the abundant cooling when stealthily dirty pump exposes page operation has been realized, be provided with temperature sensor 5 in motor chamber 19 in addition, be provided with in the seal chamber 16 and reveal test probe 11, can monitor motor temperature and seal chamber 16's leakproofness, when motor is overheated or seal chamber 16 reveals, the controller cuts off the power supply, stealthily dirty pump shut down the machine and repaiies, prevent burning out of stealthily dirty pump motor, safety and practicality.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.

Claims

1. The utility model provides a stealthily dirty pump for sewage treatment, includes the pump body (22), drive arrangement, pump income water stand (14), delivery port (12), its characterized in that: the pump body (22) is of a hollow structure, the driving device penetrates through the pump body (22), the impeller (13) is sleeved on the lower portion of the driving device, the impeller (13) is located in a volute (15), a pump water pumping seat (14) is arranged below the volute (15), a water outlet (12) is formed in the right side of the volute (15), a hanging ring (2) is arranged above the pump body (22), the pump body (22) comprises a motor shell (3) and a cooling shell (21), a cooling cavity (6) is formed between the motor shell (3) and the cooling shell (21), a water outlet pipe (7) and a water return pipe (20) are arranged in the cooling cavity (6), the driving device comprises a lead-out cable (1), an upper bearing (4), a transmission shaft (8), a lower bearing (9), a mechanical sealing element (10), a rotor (17) and a stator (18), the lead-out cable (1) is fixed above the pump body (22) through a cable fixing sleeve (23), the other end of drawing cable (1) extends to in motor chamber (19), motor chamber (19) top-down is provided with upper bearing (4), transmission shaft (8) and lower bearing (9) respectively, be provided with temperature sensor (5) on motor chamber (19) lateral wall, motor chamber (19) below is provided with sealed chamber (16) that is full of oil, sealed chamber (16) are passed in transmission shaft (8), transmission shaft (8) are sealed through mechanical seal spare (10), be provided with in sealed chamber (16) and reveal test probe (11).

2. The submersible sewage pump for sewage treatment according to claim 1, wherein the temperature sensor (5) and the leak detection probe (11) are both electrically connected to a controller input, and the controller output is electrically connected to a motor.

3. The submersible sewage pump for sewage treatment according to claim 1, characterized in that the cooling chamber (6) is a communication structure, and can realize the circulation flow of water.